Wire slide for use in looms



July 25, 1961 H. M. STANTON WIRE SLIDE FOR USE IN LOOMS 2 Sheets-Sheet 1 Filed Aug. 8, 1960 INVENTOR. fiykeff m B 2 July 25, 1961 H. M. STANTON WIRE SLIDE FOR USE IN LOOMS 2 Sheets-Sheet 2 Filed Aug. 8, 1960 FIG.7

United States Patent 2,993,515 WIRE SLIDE FOR USE IN LOOMS Haskell M. Stanton, Amsterdam, N.Y., assignor to M0- hasco Industries, Inc., Amsterdam, N.Y., a corporation of New York Filed Aug. 8, 1960, Ser. No. 48,237 4 Claims. (Cl. 139-40) This invention relates to pile fabric looms, in which the pile yarns are raised over pile wires during the weaving operation, and is concerned more particularly with a novel slide forming part of the wire motion for use in such a loom.

The conventional wire motion used in pile wire looms comprises a slide mounted on a support extending outwardly from one of the loom sides and the slide terminates at one end close to the warp shed in the loom and is pivoted at its other end on a vertical pivot. The motion includes a carriage reciprocated on the support toward and away from the loom and provided with a hook engageable with an opening in the head of a wire in the fabric to draw the wire from the fabric and a plate engageable with the end of the head to insert the Wire into the warp shed. The slide is formed with a slot, into which the wire is drawn by the hook, and, as soon as the Wire is free of the fabric, the slide is swung on its pivot, so that the wire can be advanced out of the slot and inserted into the shed at the desired place.

In a standard wire motion, the carriage is provided with a spring-pressed member engaging the head of each wire during its withdrawal and insertion, but no means are provided for holding the body or blade of the wire in the slot. As a result, it sometimes happens in high speed operation that a wire will not lie in proper position in the groove of the slide or will jump out of the groove, so that, in the insertion of the wire, it does not enter the shed but strikes and damages the warp yarns.

The present invention is directed to the provision of a novel slide for use in the wire motion of a pile wire loom, which is provided with simple and effective means for holding each wire securely in the groove of the slide but without interfering with the movement of the wire into and out of the groove. Such holding means take the form of permanent magnets mounted in the slide adjacent the groove and, preferably, the magnets are formed with slots, which define portions of the groove.

For a better understanding of the invention, reference may be made to the accompanying drawings, in which FIG. 1 is a plan view showing the slide of the wire motion in position to receive a Wire;

FIG. 2 is an elevation of the parts of the wire motion shown in FIG. -1;

FIG. 3 is a plan view of the slide alone;

FIG. 4 is a sectional view on an enlarged scale on the line 4-4 of FIG. 3;

FIG. 5 is a plan view of the carriage of the wire motion;

FIG. 6 is an elevational view of the carriage; and

FIG. 7 is an elevational View of part of a wire.

The slide 10 of the wire motion rests upon a support 11 attached to one of the loom sides and, at its end remote from the loom, the slide is pivoted on the support by a pin 12 for swinging movement over the support. A bracket 13 is attached to the side of the slide and, during the operation of the loom, the slide is swung between the position shown in full lines, in which it receives a wire, and the dotted line position, from which the wire in the slide is inserted into the warp shed. Such movements are imparted to the slide by suitable means acting through the link 14 attached to the bracket. The slide is provided with a longitudinal slot 10a extending downwardly into the slide from its top surface and running substantially the full length of the slide.

The wires 15, with which the slide is used, are of conventional construction and include a body or blade 16 of a suitable height to produce the desired pile elements, and a head 17 of heavier stock. The head has a slot formed in one side and extending inwardly from the forward edge of the head and a part of the blade lies in the slot. The head has an opening 17a for receiving a book, by which the wire is withdrawn from the shed, and also has a slot 17b in its end remote from the blade.

The wires woven into the fabric are withdrawn therefrom successively and inserted into the warp shed by a carriage 18, which includes a plate 19 having a downward extension 20 attached to the cable 21, by which the carriage is reciprocated lengthwise of the support. A lever 22 pivotally mounted on the plate 19 is provided at one end with a hook 22a receivable in the opening 17a in the heads of the wires and a spring 23 bears against the tail of the lever to urge it toward effective position. A holder 24 having a cross-bar 24a adapted to bear against the head of a wire engaged by the hook to hold the head in the slot in the slide is attached to a bracket 25 mounted on a shaft 26 supported in bearings 27 attached to the top of the plate 19. A spring 28 acts on the bracket from beneath and tends to swing it to cause the cross-bar of the holder to move down.

In the operation of the wire motion, the slide 10 is swung between its dotted and full line positions as shown in FIG. 1. When the slide is in the full line position, the carriage is moved so that the hook 22a on the lever 22 on the carriage enters the opening 17a in the head of the wire farthest from the fell of the goods and, when the carriage is retracted, the wire is withdrawn from the fabric and enters the slot 10a in the slide. When the head of the wire is thus engaged by the hook, the forward edge of the plate 19 enters the slot 17b in the head and the cross-bar 24a of the holder bears against the top edge of the head. When the carriage has been fully retracted and the wire lies wholly within the slot in the slide, the slide is swung to the dotted line position shown in FIG. 1 and the carriage is advanced. In the initial part of such movement of the carriage, the hook 22a frees itself from the opening 17a in the head of the wire and the edge of the plate 19 engages the forward end of the slot 17b in the head of the wire and starts to advance the wire forward out of the slot. As the slide is swung, the head of the wire moves transversely of the plate 19 in contact with the front edge thereof, while the cross-bar 24a of the holder continues to press down upon the upper edge of the head of the wire to hold it in position.

In the operation of the wire motion, the movements of the carriage in withdrawing a wire from the fabric and inserting it into the shed are at high speed. During the movements of a wire, its head is held in the slot on the slide by the hook and the holder but, in a conventional slide, no means are provided for holding the blade of the Wire in position. As a result, the blade sometimes rises out of the slot and, during insertion of the wire into the shed, strikes and injures the warp yarns.

In the new slide, a plurality of openings are formed in the slide from beneath, the openings being spaced a suitable distance, such as five or six inches. In each such opening is inserted a permanent magnet 29, which is preferably of cylindrical form and is formed with a slot 29a in its top which lies in registry with the slot 10a of the slide. The top of each magnet lies above the bottom of the slot 10a such a distance that the magnet will act on the blade of a wire in the slot and strong magnets, such as those of Alnico type, are employed. When a wire is drawn into the slide, the magnets permit free horizontal movement of the wire but the magnets attract the blade of a wire lying wholly within the slot and tend to prevent its upward movement. Accordingly, when the carriage is advanced to insert the wire into the warp shed, the magnets prevent the blade of the wire from rising and striking and damaging the warp yarns. The magnets thus do not interfere with the movement of a wire into and out of the slot in the slide but they insure that the blade of the wire will stay in the slot and be properly directed into the warp shed, so that injury to the warp yarns by the wire will be avoided.

I claim:

1. In a wire motion for a pile wire loom, a slide movable between a position for receiving a wire withdrawn from the -fabric and a position for inserting a wire into the warp shed, the slide having a longitudinal slot for receiving the wire, and permanent magnets attached to the slide and spaced along the slot for retaining the wire in the slot.

'2. In a wire motion for a pile wire loom, the slide defined in claim 1, in which the permanent magnets are mounted in openings in the slide adjacent the slot.

3. In a wire motion for a pile wire loom, the slide defined in claim 2, in which the slot extends down into the slide from its top and the slide is formed with spaced openings extending upward from the bottom of the slide and intersecting the slot, and the permanent magnets have slots in their upper ends defining portions of the slot in the slide.

4. In a Wire motion for a pile wire loom, the slide defined in claim 3, in which each permanent magnet is cylindrical and its slot is formed diametrically in its upper end and is of a size to receive the edge of the blade of a wire.

References Cited in the file of this patent UNITED STATES PATENTS H Weaver June 25, 1895 

